Table 4.
Changes in cardiorespiratory fitness variables from pre to post-intervention for the experimental groups (mean ± SD).
Variables
Variables
Pre-intervention
Post-intervention
Interaction effect
Hedges' g (95% CI)
VO
2max
(ml·kg
-1
·min
-1
)
HIIT
27.8 ± 2.0
30.7 ± 2.0
*
p = 0.001
1.39 (0.41 to 2.37)
Large ↑
POL
28.3 ± 1.7
32.7 ± 2.3
*
†
2.08 (0.99 to 3.17)
Very large ↑
THR
28.2 ± 1.8
30.9 ± 2.1
*
1.32 (0.35 to 2.29)
Large ↑
CON
28.1 ± 2.2
27.9 ± 1.8
0.05 (-0.83 to 0.92)
Trivial ↑
VT
1
(%VO
2max
)
HIIT
55.6 ± 3.5
57.5 ± 3.3
*
p = 0.001
0.53 (-0.36 to 1.43)
Small ↑
POL
56.3 ± 3.2
60.5 ± 3.0
*
†
1.30 (0.33 to 2.26)
Large ↑
THR
55.9 ± 2.3
58.7 ± 2.3
*
1.17 (0.22 to 2.11)
Moderate ↑
CON
56.1 ± 3.1
56.2 ± 2.9
0.03 (-0.84 to 0.91)
Trivial ↑
VT
2
(%VO
2max
)
HIIT
66.7 ± 3.0
69.9 ± 2.9
*
p = 0.001
1.04 (0.10 to 1.97)
Moderate ↑
POL
66.3 ± 3.2
71.1 ± 2.6
*
†
1.58 (0.57 to 2.58)
Large ↑
THR
66.8 ± 2.8
68.6 ± 3.1
*
0.58 (-0.31 to 1.48)
Small ↑
CON
67.1 ± 3.2
67.2 ± 2.9
0.03 (-0.85 to 0.91)
Trivial ↑
Q
max
(L·min
-1
)
HIIT
17.5 ± 1.0
18.1 ± 1.1
*
p = 0.001
0.55 (-0.35 to 1.44)
Small ↑
POL
17.4 ± 1.2
18.5 ± 1.0
*
†
0.92 (-0.01 to 1.84)
Moderate ↑
THR
17.2 ± 1.1
17.7 ± 1.1
*
0.44 (-0.45 to 1.32)
Small ↑
CON
17.1 ± 1.0
17.2 ± 1.0
0.10 (-0.78 to 0.97)
Trivial ↑
SV
max
(mL·b
-1
)
HIIT
92.5 ± 2.6
94.9 ± 2.9
*
p = 0.001
0.83 (-0.08 to 1.75)
Moderate ↑
POL
92.3 ± 3.7
97.8 ± 4.4
*
†
1.30 (0.33 to 2.26)
Large ↑
THR
92.7 ± 2.6
95.3 ± 3.1
*
0.87 (-0.05 to 1.79)
Moderate ↑
CON
92.1 ± 2.4
92.2 ± 2.7
0.04 (-0.87 to 0.91)
Trivial ↑
*denotes significant differences compared to pre and CON.
† denotes significant differences compared to other training groups.